#mainWindow{
    display: flex;
    width: 100%;
    height: 1000px;
    border: solid black 2px;
    flex-direction: column;
}

#upArea{
    display: flex;
    flex: 4;
    width: 100%;
    border: solid yellow 2px;
}

#middleArea{
    display: flex;
    flex: 2;
    width: 100%;
    border: solid yellow 2px;
}

#downArea{
    display: flex;
    flex: 4;
    width: 100%;
    border: solid red 2px;
}

#selectArea{
    display: flex;
    flex: 6;
    height: 100%;
    border: black solid 2px;
    justify-content: space-between;
    flex-wrap: wrap;
}

#resultArea{
    display: flex;
    flex: 4;
    height: 100%;
    border: blue solid 2px;
    justify-content: space-around;
    flex-wrap: wrap;
}

.featureBlock{
    width: 100px;
    height: 70px;
    border: green solid 2px;
}

.selectButton{
    width: 100px;
    height: 70px;
    border: black solid 2px;
}